Machine for developing aluminum into particles



w. c. GANGLOFF ET AL 1,816,806

MACHINE FOR DEVELOPING ALUMINUM INTO PARTICLES Filed March 8. 1929 3 Sheets-Sheet l FEE]- {HY wanton VVi/mer LZur/es any/o/f Mi /2 022 A 50/2/26) y 1931- w. c. GANGLOFF ET AL 1,816,805

\ MACHINE FOR DEVELOPING ALUMINUM INTO PARTICLES Filed March 8, 1929 s Sheets-Sheet 2 uly 8; 9 w. c. GA'NGLOFF ET AL 1,816,806

MACHINE FOR DEVELOPING ALUMINUM INTO PARTICLES Filed March 8, 1929 3 Sheets-Sheet 3 46 4.4 46 7a 59 61% I I O I 6| [I I I E I 1 I I I I I I I I 1' a v 54 i l 65 gwuentom My/n6) 6l1I/65 gdny [off Patented July 28, 1931 UNITED STATES PATENT OFFICE WILMEB CHARLES GANGLOFF, OF CINCINNATI, AND MILTON A. CONNER, OF MARIE- MONT, OHIO, ASSIGNOR-S TO THE DRACKETT CHEMICAL COMPANY, OF CINCINNATI,

OHIO, A CORPORATION OF OHIO MACHINE FOR DEVELOPING ALUMINUM INTO PARTICLES App1ication filed. March 8,

This invention relates to a machine for cutting sheet material into uniform particles that may be usedto advantage in certain chemical products for insuring uniform and as to permit of high speed operatlon.

complete chemical action.

Another. object is to produce a simple and efiicient machine for the accomplishment of the above purpose. I

Another object is to produce a machine of, the above character which is so constructed These and other objects are attained by the means described herein and disclosed in 'the accompanying drawings, in which:

Fig. 1 is a top plan View of the machine of invention.

Fig. 2 is a cross-sectional View on line 22 of Fig. 1, showing the major portion of. the machine in front elevation.

Fig. 3 is a cross-sectional view on line 3-3 of Fig. 2.

Figs. 4 and 5 are plan views of two flat metal particles that may be produced by the machine of this invention.

, .Fig. 6 is a side elevational View of a feed mechanism taken on line 66 of' Fig. 1'.

.tothe plane of movement of a reciprocable cutter 12, for producing comminuted uniform particles such as are exemplified in Figs. 4 and 5. Machines for thepurpose are obtainable at present, but said machines are more or lessimpractical due to a method of construction wherein very delicate adjustments must be maintained at all times. Furthermore, said old type machines are very complicated and require a greater number of moving parts. than the machine of the present invention.

In the drawings, 13 indicates a base provided with an upright portion 14, which supports the fixed crank shaft bearings 15. A crank shaft 16 is rotatably supported in said bearings and is provided with a pair of op- 1929. Serial No. 345,559.

nor in guides 23 on the upright portion let of the base. Cutters 12 are adjustably secured to the lower ends of theslide members in any suitable known manner, for example, by bolts 24: extending through elongated slots 25 in the cutter members. From the foregoing it should be clear that when rotation is imparted to the crank shaft by means of the pulley 26, the slide members 21 and cutters 12 will be reciprocated in a vertical plane. As the crank shaft is provided with opposed cranks, the slide members are reciprocated in opposite directions upon each revolution of the crank shaft.

The face 27 of each cutter 12 is provided with a series of longitudinal grooves or channels 28 extending for a distance from the lower edge 29 of the cutter. These grooves are disposed equidistant from one another along the face 27 thereby forming between grooves the longitudinal ribs or extending portions 30. The faces 31 forming the ribs and grooves are flat, and their planes intersect the planes of adjoining faces 31 preferably at right angles, the lines of intersection being parallel to the grooves and ribs. The planes of faces 31 are shown disposed at angles of de rees to the )lanes of the cutter and slide members.v However, it will become clearly apparent as the description proceeds, that the planes of adjoining faces 31 just referred to may intersect at an angle other than 90 degrees, whereupon the product, instead of being rectangular asshown in Figs. 4 and 5, will be substantially of diamond or parallelepiped shape. Alternate faces 31 will lie in parallel planes as shown in Fig. 3. The lower edge 32 of each face 81 is ground and sharpened to-provide cutting edges.

A suitable table means 83 is associated with the body of the machine. Upon a vertical face 70 of the table means is secured; by means of bolts 71, the complementary cutter mem- I bers 72, each of which is provided with a plurality of longitudinal grooves 7 3 adapted to cooperate w1th successlve ribs 30 of the reciprocating cutters 12 (Fig. 3) for shearing or cutting the strip material 34. Strips 34 are fed from reels (not shown) toward the cutters 12 in a horizontal plane, and at an angle of 45degrees to the planes of the cutter and slide members. It should be noted that *as the strips 34 are fed toward the cutters, the

side edges 35of the strips (Fig. 3) are in parallelism with alternate faces 31 of the grooves, whereas the remaining faces of the grooves are disposed perpendicularly to'the said side edges. It should be clear, therefore, that as a strip 34 of material is constantly fed toward the, cutters, uniformparticles such as 36 (or 37, depending upon the amount of feed) will besheared or cut fro-m. the strip. 34, which particles may drop into any suitable chute or container, not shown. It is to be understoodthat by reducing the amount of feed of the strip, particles of any size smaller than i the square 37.1nay be produced.

Means are provided for effecting step by step advancement of strips 34 toward its outter member 12."The forward movement of the strip occurs at such time as the cutter is in raised position. As there are many well known mechanisms for efiecting the inter may be moved relative to fixed bearings 42 by any suitable means, such as screws 44, whereby to vary the space between the rollers 3840 and 39-41 for the accommodation of strips 42 of various thicknesses. The means for imparting intermitten partial rotation to rollers 38 and 39 comprises a rockable member 45 having pivotally mounted thereon a pawl 46, urged by a spring 47 toward a ratchet wheel 48, which latter is fixedly secured upon the shaft 390 of roller 39. Relative movement of the ratchet wheel, roller 39and shaft 390 is precluded by the provision of a key 49 or other suitable means connecting said members. The rockable member is loosely supported upon shaft 390 and is movable thereabout.

It should be apparent that the rachet means operates, when the-rockable member is actuated, for imparting intermittentunidirectional rotation of the roller 39.

The rockable member45 is moved in counter clockwise direction about shaft 390 by a reciprocating means 50 on the slide member 21. The reciprocating means is provided with an extension 51 (Fig. 6) which carries a threaded bolt 52 extending through a vertical threaded bore 53 in the extension 51. The relationship between the member 50 and arm 54 of the rockable member is such that the are described by said arm may be increased by raising the screw 52 in the threaded bore. A lock nut 55-may be associated with adjusting screw 52 if desired. As indicated in Fig. 6, the'member 50 is movable to the position shown by dashed lines 56, such repeated movement beingsuflicient to raisethe arm 54the properdistance for rotating the rat-chet wheel tooth by tooth in counter clockwise direction. As the pressure roller 39 is fixed on the ratchet wheel. shaft, said roller will also'be intermittently rotated. This movement is also imparted to pressure roller 38 by means of an idler gear 57 meshing with gears 58 and59 on the shafts of'rollers 38 and 39 respectively.

A suitable spring actuated means 60 serves to return the rocker member to the position shown in Fig. 6 during the interval of downward movement of member 50. An abutment 61 may be provided for limiting return movement of the rocker member under the influence of spring mechanism 60.

When it is desired toincrease the amount of intermittent strip feed, the adjusting screw 52 is raised to the extreme upper position 7 relative to the threaded bore 53, whereupon the arm 54 is moved through a greater are of movement upon'reciprocation of member 50. When the device is adjusted in the above manner, the rockable member is rocked suf,- ficiently to cause pawl 46 to engage alternate teeth of the ratchet wheel 48, thereby doubling the amount of feed upon each upward movement of the abutment means 50. It will be understood that various other feed speeds could be obtained by replacing the ratchet wheel 48 with one having, a greater number of teeth, or by utilizing pressure rollers of a different diameter. For the purposes of this invention, two speeds'are considered sufi'icient.

In Figs. 1 and 8 are shown means for guiding the strip of material 34 as it is fed toward the cutter. j Said means comprises transversely disposed guide bars 62 upon which are adjustably mounted the slidable blocks 63, each of whichis provided with a 7 slot 64 for receiving the edges 35 of strip 34. Set screws 65 in the blocks and cooperative longitudinal grooves 66 in the guide bars provide means whereby the blocks may be laterally adjusted for proper feeding of the strip material toward the cutters.

The operation of the device is as follows.

The strip material is first inserted between the pressure feed rollers, and the rollers thereupon are adjusted by means of screws 44 to firmly contact the strip. The guides then are adjusted to guide the strip to the cutter in the manner shown in Fig. 3. It

will be assumed that particles 86 such as are shown in Fig. 5, are desired. The adjusting screw 52 (Fig. 6) is backed relative to the threaded perforation 53 until it assumes the position shown in Fig. 6. Rotation is then imparted to the pulley 26 by a belt or motor, whereupon the cutters are reciprocated in a manner previously described. As the abutment members are reciprocated by reason of their being attached, like the cutter blades, to the slide members 21, the rockable members 45 are actuated for feeding thestrip material toward the cutters. It is to be understood, of course, that the left hand side of the machine shown in Fig. 1 is a duplicate of the right hand side, which latter is shown indetail throughout the drawings.

It is important to note that while rectangular particles such as 36 are being produced by the machine, the feed mechanisms are intermittently advancing the strips 34 a distance equal to one half the width of a face 31 of the cutter groove. This distance is doubled when the adjusting screw 52 of each feed mechanism is raised to its upper limit,

and the result is the production of squares 37. It should be observed that by the foregoing means, particles of either size may be produced with a minimum of adjustment.

Although the device of this invention is shown in a preferred form, it is tobe understood, that various changes may be made, within the scope of the appended claims, without departing from the spirit of the invention.

What is claimed is:

1. In a device of the class described the combination of a pair of cooperative relatively movable cutter members each provided with grooves having faces disposed at an angle to the plane of the cutter member, and a feeding mechanism operating in synchronism with the relatively movable cutter members for step by step advancement of a strip of material toward the cutter members at substantially right angles to one of the faces of each of said grooves, for a distance not in excess of the width of said faces of the grooves.

2. In a device of the class described the combination of an actuatable cutter member having a series of grooves each comprising flat faces disposed at right angles to one another, a cooperative cutter member, and means for step by step advancement of strip material toward the actuatable cutter member at right angles to one face of each groove and parallel to the other face thereof, each step of advancement being for a distance not in excess of the face width.

member at acute angles, a second series of parallel faces on the cutter member the planes thereof intersecting the planes of the first mentioned parallel faces at right angles, a cooperative cutter member movable relatively to the first mentioned cutter member,

means for relatively moving the cutter members, and means operating in synchronism with the relatively movable cutter members for a step by step advancement of strip material in parallelism with one series of corresponding faces on the cutter member and toward the cutter members, each step of advancement being for a distance not in excess of the face width.

4:. The method of comminuting a rectangular strip to produce, without waste and odd shaped pieces, a multitude of similarly shaped particles, said method comprising feeding said strip in step by step fashion to a cutting device having teeth each with cutting edges disposed substantially at right angles to one another the direction of feed being in parallelism with one of said cutting edges and substantially at right angles to the other of said cutting edges.

In testimony whereof, we have hereunto subscribed our names this 26th day of February, 1929.

WILMER CHARLES GANGLOFF. MILTON A. CONNER. 

